package thread;

/**
 * 同步块
 * 有效的缩小同步范围，可以在保证并发安全的前提下尽可能提高并发效率
 */
public class SyncDemo2 {
    public static void main(String[] args) {
        Shop shop = new Shop();
        Thread t1 = new Thread("wjk"){
            @Override
            public void run(){
                shop.buy();
            }
        };
        Thread t2 = new Thread("wang"){
            @Override
            public void run(){
                shop.buy();
            }
        };
        t1.start();
        t2.start();
    }
}
class Shop{
    public  void buy(){
        Thread t = Thread.currentThread();
        try {
            System.out.println(t.getName() + ":正在t挑衣服");
            Thread.sleep(5000);
            synchronized(this) {
                System.out.println(t.getName() + "：正在试衣服");
                Thread.sleep(5000);

            }
            System.out.println(t.getName() + "结账离开");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}
